已知向量
满足
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f30df675d65971402775be6cde0b3ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2879038f6de2a2229c49b9e8cf1a84ab.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fe4d834e8eaca89ceaf9c64cdabd9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c250094127e2b3c878d68213b60407.png)
21-22高一·全国·单元测试 查看更多[5]
苏教版(2019) 必修第二册 一课一练 第9章 平面向量 单元检测(已下线)第01讲 平面向量(练)福建省泉州市第七中学2022-2023学年高二上学期9月测试数学试题江苏省射阳中学2022-2023学年高一下学期3月月考数学试题(已下线)第9章 平面向量 单元综合检测(重点)-《重难点题型·高分突破》(苏教版2019必修第二册)
更新时间:2022-08-23 14:55:49
|
相似题推荐
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知两个不共线的向量
,
的夹角为
,且
,
.
(1)若
与
垂直,求
;
(2)若
,求
的最小值及对应的
的值,并指出此时向量
与
的位置关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9936a46cc891744d4600f76bb92b694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df42687a73cb92e92a3cb6e54f1edb15.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e03adf3fa0262d9bd46a2c794eb15746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d7886b5d3e7832e5216be9bcc553c5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/734a6a1d319648bb969845a9159cdba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1cd1fa10f2be97dd659fc86f8a7dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f931dad27fbfb6f48397d0814f42d24.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】已知向量
且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915548b914be759f5552b331398c3a97.png)
(1)求
的取值范围;
(2)求函数
的最小值,并求此时x的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aafadbb73826693852484222bcf3deab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915548b914be759f5552b331398c3a97.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5998635566473bc9db2b4d4f133d6878.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c50ed84ad621ddc3ba12504f2d0dca.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐1】(1)已知单位向量
与
的夹角为
,且
,
,求
;
(2)已知
,
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9559b133927dd68c23db772fb061fb92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf321b9634a90680341dcf1938022b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854e16eb319ee454088f5b527cf6c4d5.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9883f16cdef5fb87fb9d6a9897d113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ff265969988f1f138700129e5d7a6d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c909dd73cd3bef544ae822975d47586a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854e16eb319ee454088f5b527cf6c4d5.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐2】已知
,且向量
在向量
的方向上的投影为
,求:
(1)
与
的夹角
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceb59bebcdd667e880ecc9f1a9a8c55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f5ae4c41ea5e5cf71e61fa33d89ecab.png)
您最近一年使用:0次